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posformer-mathwriting-GGUF
cstr/posformer-mathwriting-GGUF
posformer-mathwriting-GGUF is a image-to-text model from cstr. Use it when you need a caption or text from an image. The card lists the license as bsd-2-clause.
GGUF conversion of SJTU-DeepVisionLab/PosFormer for CrispEmbed.
All-time downloads
247
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Repo size
38 MB
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0
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Repo makeup
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.gguf38 MB · 100%
At a glance
- Task
- Image-to-Text
- License
- bsd-2-clause
- Access
- Public
- Created
- Jun 10, 2026
- Updated
- Jul 11, 2026
- SHA
- 45eb7de7
Model card
From the Hugging Face model README
PosFormer MathWriting — GGUF
GGUF conversion of SJTU-DeepVisionLab/PosFormer for CrispEmbed.
Handwritten mathematical expression OCR — takes a photo of handwritten math and outputs LaTeX. Trained on CROHME 2014.
Architecture
- Encoder: DenseNet (growth_rate=24, 16 layers/block, 1-channel grayscale input)
- Decoder: 3-layer transformer (256-dim, 8 heads, 1024 FFN)
- ARM: coverage-based Attention Reading Module (dc=32) for tracking decoded symbols
- Vocab: 113 tokens, max output length 200
- Input: grayscale image (arbitrary resolution)
- Output: LaTeX string + per-token confidence
Files
| File | Size | Description |
|---|---|---|
posformer-mathwriting_v2-f32.gguf | 36 MB | F32 full precision |
Usage
crispembed --backend posformer -m posformer-mathwriting_v2-f32.gguf \
--image equation.png
License
BSD-2-Clause (same as the original model).
Credits
- Original model: SJTU-DeepVisionLab
- GGUF conversion & runtime: CrispEmbed
- Task
- Image-to-Text
- License
- bsd-2-clause
- Created
- Jun 10, 2026
- Updated
- Jul 11, 2026